| Alan Roy Hawkins | Director | 22 Feb 1993 | 13 Jun 1997 | British | 72 years |
| Alice Read | Secretary | 19 Jul 2005 | 8 May 2006 | British | - |
| Andrew Cheesewright | Director | 20 May 2009 | 31 Mar 2012 | British | 63 years |
| Bryan Frank Elliott | Director | 22 Feb 1993 | 17 Aug 2000 | British | 75 years |
| David John Coke | Director | 28 May 2009 | 31 Dec 2019 | British | 68 years |
| David Laren Wells | Director | 18 Dec 2006 | 6 Sept 2012 | British | 58 years |
| Deborah Ann Morse | Director | 19 Mar 2014 | 1 Feb 2019 | British | 59 years |
| Denette Botchway | Secretary | 4 Sept 2014 | 16 Dec 2016 | - | - |
| Donald Thomas Smith | Director | 31 Jan 1995 | 17 Aug 2000 | British | 76 years |
| Frances Julie Niven | Secretary | 23 Jul 2004 | 19 Jul 2005 | British | - |
| Frederick Albert Whitehorn | Director | 1 Jul 1997 | 13 May 1999 | British | 72 years |
| Helena Margaret Clarke | Director | 1 Jul 1997 | 17 Aug 2000 | British | 65 years |
| James Keith Barton | Secretary | 22 Jul 1993 | 17 Jul 1995 | British | - |
| John Raymond Goodbody | Director | 17 Aug 2000 | 30 Sept 2002 | British | 76 years |
| Kate Elizabeth Hudson | Secretary | 28 Sept 2009 | 19 Mar 2014 | - | - |
| Kevin James Davies | Director | 4 May 1994 | 13 Jun 1997 | British | 65 years |
| Kevin Oconnor | Director | 1 May 1996 | 5 Nov 1998 | British | 66 years |
| Mark Vincent Dawson | Director | 3 Sept 2003 | 8 Jan 2009 | British | 70 years |
| Mark Vivian Pearce | Secretary | 19 Dec 2002 | 23 Jul 2004 | British | - |
| Martin John Reason | Director | 31 Jan 2003 | 4 Sept 2003 | British | 66 years |
| Mausami Parekh | Secretary | 9 May 2017 | 9 Nov 2018 | - | - |
| Michael Berry Savory | Director | 17 Aug 2000 | 31 Jan 2003 | British | 83 years |
| Michael Joseph Coyne | Director | 22 Feb 1993 | 29 Mar 1996 | British | 71 years |
| Nigel Barker | Secretary | 22 Feb 1993 | 22 Jul 1993 | British | - |
| Pauline Louise Mcquillan | Secretary | 8 May 2006 | 24 Sept 2009 | British | - |
| Philip William Richardson | Director | 1 May 1998 | 17 Aug 2000 | British | 66 years |
| Pragnaa Raju | Secretary | 25 Mar 2021 | 23 Nov 2022 | - | - |
| Richard Ian Crews | Director | 22 Feb 1993 | 31 Jan 1995 | British | 75 years |
| Richard John Dixon | Director | 16 Jan 2001 | 4 Sept 2003 | British | 65 years |
| Robert Hugh Musgrove | Secretary | 6 Aug 1999 | 19 Dec 2002 | Other | - |
| Robert James Hinton | Secretary | 19 Mar 2014 | 4 Sept 2014 | - | - |
| Shaun Kevin Bryant | Secretary | 17 Jul 1995 | 6 Aug 1999 | British | - |
| Sheryl Muniz | Director | 1 May 1996 | 1 May 1998 | English | 61 years |
| Shreya Agarwal | Secretary | 9 Oct 2019 | 25 Mar 2021 | - | - |
| Simon David Collier | Director | 22 Feb 1993 | 22 Jul 1993 | British | 65 years |
| Stephen Charles Crockford | Director | 31 Jan 1995 | 4 Jan 2001 | British | 75 years |
| Stephen James Britain | Director | 3 Sept 2003 | 29 Dec 2006 | British | 57 years |
| Sudipto Banerjee | Secretary | 14 Jan 2019 | 8 Oct 2019 | - | - |
| Valerie Smart Farrell | Director | 14 Jan 2019 | 31 Aug 2021 | British | 65 years |
| Victor Thomas Berry | Director | 22 Feb 1993 | 20 Apr 1994 | British | 83 years |
| Victoria Wales | Director | 19 Apr 2010 | 19 Mar 2014 | British | 50 years |
| Vivien Armson | Director | 20 May 2009 | 31 Mar 2010 | British | 68 years |